Log user approval/rejection in application logs

app/services/users/approve_service.rb

@@ -17,6 +17,7 @@ module Users
         user.accept_pending_invitations! if user.active_for_authentication?
         DeviseMailer.user_admin_approval(user).deliver_later
 
+        log_event(user)
         after_approve_hook(user)
         success(message: 'Success', http_status: :created)
       else
@@ -39,6 +40,10 @@ module Users
     def approval_required?(user)
       user.blocked_pending_approval?
     end
+
+    def log_event(user)
+      Gitlab::AppLogger.info(message: "User instance access request approved", user: "#{user.username}", email: "#{user.email}", approved_by: "#{current_user.username}", ip_address: "#{current_user.current_sign_in_ip}")
+    end
   end
 end
 

app/services/users/reject_service.rb

@@ -16,6 +16,8 @@ module Users
 
       NotificationService.new.user_admin_rejection(user.name, user.email)
 
+      log_event(user)
+
       success
     end
 
@@ -30,6 +32,10 @@ module Users
     def after_reject_hook(user)
       # overridden by EE module
     end
+
+    def log_event(user)
+      Gitlab::AppLogger.info(message: "User instance access request rejected", user: "#{user.username}", email: "#{user.email}", rejected_by: "#{current_user.username}", ip_address: "#{current_user.current_sign_in_ip}")
+    end
   end
 end
 

changelogs/unreleased/298783-log-user-instance-request-in-audit-events.yml

+---
+title: Log user approval/rejection in application logs
+merge_request: 51768
+author:
+type: added

spec/services/users/approve_service_spec.rb

@@ -61,6 +61,14 @@ RSpec.describe Users::ApproveService do
           expect(user.reload).to be_active
         end
 
+        it 'logs approval in application logs' do
+          allow(Gitlab::AppLogger).to receive(:info)
+
+          subject
+
+          expect(Gitlab::AppLogger).to have_received(:info).with(message: "User instance access request approved", user: "#{user.username}", email: "#{user.email}", approved_by: "#{current_user.username}", ip_address: "#{current_user.current_sign_in_ip}")
+        end
+
         it 'emails the user on approval' do
           expect(DeviseMailer).to receive(:user_admin_approval).with(user).and_call_original
           expect { subject }.to have_enqueued_mail(DeviseMailer, :user_admin_approval)

spec/services/users/reject_service_spec.rb

@@ -48,6 +48,14 @@ RSpec.describe Users::RejectService do
 
           subject
         end
+
+        it 'logs rejection in application logs' do
+          allow(Gitlab::AppLogger).to receive(:info)
+
+          subject
+
+          expect(Gitlab::AppLogger).to have_received(:info).with(message: "User instance access request rejected", user: "#{user.username}", email: "#{user.email}", rejected_by: "#{current_user.username}", ip_address: "#{current_user.current_sign_in_ip}")
+        end
       end
     end